General Studies · Theory of Machines
A circular solid disc of uniform thickness 20 mm, radius 1 m, and mass 10 kg is used as a flywheel. If it rotates at a speed of 210 rpm, its kinetic energy in Joules is approximately:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13160 J
- 21580 J
- 31210 J✓
- 4560 J
Correct answer
1210 J
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